"You know what?" Avril Lavigne said at the American Music Awards, "I've never seen it but I want to. I don't think I've ever seen even one of them."

John Legend has only the seen the first, but admitted, "I haven't seen one since the very first one. I never kind of got into it."

Harry certainly had his fair share of admirers at the AMAs, including Nicki Minaj. "I saw a couple of them, but I haven't seen the latest," she said. "But I live for them. I need just like a box set of all the movies."

It didn't take much to get Hannah Montana star Mitchel Musso hooked. "I love HarryPotter! Lord of the Rings, all those," he said. "Anything fantasy, mystical, magical—anything! I'm all about it."

Castle beauty Stana Katic said it's been fun watching all the Potter stars grow up. "I haven't seen it yet, but I fully, fully plan on it because I'm a fan," she said.

Of all the celebs we asked about Deathly Hallows, DarrenCriss was the only who had actually seen it. He attended the New York City premiere.

But he needs to see it again. "It was hard for me to pay attention because I was like, Oh my God, I'm sitting next to Patrick Wilson, Keri Russell, Rob Thomas…Whitney Houston!" the Glee newbie said. "So from what I did see it was a blast…I mean, I'm a big Harry Potter fan, so even if it was terrible I would have been like, 'Yeah, it was awesome!'"

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